从下列单词中选择适当的词填空，每个词只能用一次。
strange while afford taken delivered wish mistaken if simple to why request
Twelve-year-old Mathew loves reading. Until recently, advertisements were the only reading materials available __1__ the boy. So he approached his mailman to ask if he had any junk mail.
The __2__ question naturally prompted the mailman Lynch to ask __3__ and then put Mathew’s response in a Facebook post: “Today __4__ delivering mail, I saw him reading ads, and then he asked me if I had any extra mail he could read,” Lynch wrote. “He told me his __5__ is to have books to read but he couldn’t __6__ to take the bus to the library.” Lynch then asked his friends __7__ they could spare some books for Mathew.
Lynch thought the Facebook post might bring in 50 to 60 books. But his __8__ was widely spread online. People from around the world have sent books. Hundreds of books have been __9__ to the boy’s door so far, and Mathew said he was surprised by the generosity. “I thought they were __10__ , but they were for me.” He said he can’t wait to share the books with other kids, and has promised to read every one.
本题知识点：选词填空,
1） _____